Lightroom Classic didn't shows dialogs e.g. Export and Denoise

[code.sport]

I’m using Lightroom Classic (Version 14.1.1) and am experiencing issues. I can’t open dialogs like Export and Denoise, and exporting with a defined profile doesn’t work either.

What steps can I take to resolve these problems and get everything working again?

[Per Berntsen]

What exactly happens when you click Export or Denoise? Any error messages?

[code.sport]

I'm using Windows 11 and I don't get any message. No dialog shows up. Also waitung for half an hour.

[JohanElzenga]

Check this: sometimes these dialogs can get hidden behind a window, especially behind the secondary display window.

If that is not what happened, then try resetting the preferences to see if that solves it. 

https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/

[code.sport]

it doesn't help. Should I try to create a new catalog?

[JohanElzenga]

Yes, you could try creating a new catalog, import just a few images and see if you can Denoise and export them.